Theseus is the Greek mythological hero who killed the Minotaur. The Minotaur was a half-man, half-bull monster that lived in the Labyrinth created by Daedalus, and it was the offspring of Pasiphae, the wife of Minos, and a snow-white bull sent to Minos by the god Poseidon for sacrifice. King Minos demanded that seven Athenian youths and seven maidens should be sent every ninth year to be devoured by the Minotaur as a tribute for the death of his son Androgeos. Theseus volunteered to go and with the help of Ariadne, daughter of Minos and Pasiphae, he killed the monster and ended the tribute.